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08-30-2007, 07:46 PM
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Hummer Veteran
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Join Date: Oct 2005
Location: Kansas City, MO
Posts: 163
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Re: what 's the correct air pressure when doing it on sand, on highway, and on offroa
I'm looking at getting some tire deflators, but man are they expensive! Why?
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08-30-2007, 08:31 PM
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Hummer Guru
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Join Date: Sep 2005
Location: fort salonga ny
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Re: what 's the correct air pressure when doing it on sand, on highway, and on offroa
Quote:
Originally Posted by BigBill
I'm looking at getting some tire deflators, but man are they expensive! Why?
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? There brass,very few companys make them,they work well ?
I had them 2 years and never had to take them apart to clean.
I dont leave them on when offroading so they dont get dirty.
I do check them once a year(not off by more then 1 psi) reset to 18lbs spray a little wd on the top .
Also get the no lose valve caps ,like having a extra hand.
Oh! best of all... they sound cool airing down ,real cool when you drive airing down  cool factor alone is worth the 50 bucks.(you cany even fill it up for less then that) 
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08-30-2007, 10:46 PM
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Hummer Veteran
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Join Date: Aug 2007
Posts: 36
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Re: what 's the correct air pressure when doing it on sand, on highway, and on offroad.?
18 PSI? That's total right? As in 4.5 psi per tire?
For most vehicles / tires, it's not worth getting out of the truck, much less having to air back up if you don't go down to at least 10 PSI.
To get a good ball park, park on pavement and measure from the ground to the bottom edge of the rim. Reducing this distance by 25% will give you the largest foot print you can get (unless you want to get technical and do a ton of measuring). It depends on the tire and weight of the vehicle, but in most cases your looking at about 5 PSI, but may be anywhere from 2 to 10 PSI.
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08-30-2007, 11:27 PM
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Re: what 's the correct air pressure when doing it on sand, on highway, and on offroad.?
Quote:
Originally Posted by Steve #1
18 PSI? That's total right? As in 4.5 psi per tire?
For most vehicles / tires, it's not worth getting out of the truck, much less having to air back up if you don't go down to at least 10 PSI.
To get a good ball park, park on pavement and measure from the ground to the bottom edge of the rim. Reducing this distance by 25% will give you the largest foot print you can get (unless you want to get technical and do a ton of measuring). It depends on the tire and weight of the vehicle, but in most cases your looking at about 5 PSI, but may be anywhere from 2 to 10 PSI.
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Your either a funny guy  or you have no idea what the f your talking about.  Or you 4 wheel on the moon 
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08-31-2007, 03:26 AM
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Re: what 's the correct air pressure when doing it on sand, on highway, and on offroad.?
Yeh ill put in 2psi in the tires and go wheeling. 
I dont think you can go that low with bead locks
 This thread got invaded by AE's or trolls...or some Frickin stupid newbee's .
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Last edited by fourfourto : 08-31-2007 at 03:35 AM.
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08-31-2007, 03:37 AM
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Re: what 's the correct air pressure when doing it on sand, on highway, and on offroad.?
Quote:
Originally Posted by GVCOGuy
Same to you. Post up your extream wheeling pics? Web wheel much? 
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Heres me on the moon 
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08-31-2007, 09:23 AM
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Join Date: Oct 2006
Location: Abu Dhabi - UAE
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Re: what 's the correct air pressure when doing it on sand, on highway, and on offroad.?
How's the moondust up there?
On road 35, desert dunes 14, rocks & wadi's 20 running on 33" BFG A/T KO'S
Hope this helps.
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08-31-2007, 04:47 PM
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Hummer Veteran
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Join Date: Aug 2007
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Re: what 's the correct air pressure when doing it on sand, on highway, and on off .?
My first inclination was to blow you off and let you go on with wasting your time airing down to 18 PSI.
As for web wheeling, I learned how to drive off road before the INTERNET existed.
I don't have many picture, I'm normally busy driving, not in it for the pictures.
I found an article that goes in to a lot more detail to explain what I said.
http://www.4x4now.com/sfjun96.htm
2 PSI is extreme and and in many cases would require bead locks. You do need to be prepared and have an extra spare or two as well as means of re-seating a bead. It is also the low end of the spectrum but you will find that the big difference comes in those last 10 pounds.
Take it or leave it guys, If you don't feel safe going under 18 PSI, fine, it doesn't effect me unless you're on the trail in front of me.
fourfourto I'd appreciate an apology for your comment "This thread got invaded by AE's or trolls...or some Frickin stupid newbee's ." as I can only assume you were referring to me. I don't like being called stupid, especially when I'm right.
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08-31-2007, 05:48 PM
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Re: what 's the correct air pressure when doing it on sand, on highway, and on offroad.?
fourfourto I'd appreciate an apology for your comment "This thread got invaded by AE's or trolls...or some Frickin stupid newbee's ." as I can only assume you were referring to me. I don't like being called stupid, especially when I'm right.
I never said you couldnt go down under 18 lbs im sure 15 or 12 is fine but going under 10 without beadlocks.I dont think anyone here has beadlocks on a 3
Another newbie thinks hes right.,Your link didnt prove anything except the lower the air more traction.I you go under 10psi you could blow(your favorite word)  your tire off the rim.
If anyone here agree's with this guy let me know.
Also does anyone airdown under 10 ? I dont think so
Steve #1 if you could get a few regulars to agree with you then I will take back my comment otherwise
Not sure about you steve #1 but GVCOGUY got to be a AE My comment was for both of you.
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08-31-2007, 01:23 AM
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Re: what 's the correct air pressure when doing it on sand, on highway, and on offroa
Quote:
Originally Posted by Steve #1
18 PSI? That's total right? As in 4.5 psi per tire?
For most vehicles / tires, it's not worth getting out of the truck, much less having to air back up if you don't go down to at least 10 PSI.
To get a good ball park, park on pavement and measure from the ground to the bottom edge of the rim. Reducing this distance by 25% will give you the largest foot print you can get (unless you want to get technical and do a ton of measuring). It depends on the tire and weight of the vehicle, but in most cases your looking at about 5 PSI, but may be anywhere from 2 to 10 PSI.
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Steve,
Evidently you are running helium in your tires. When you air down stop inhaling it! 
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08-31-2007, 09:51 PM
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Hummer Professional
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Join Date: May 2007
Location: Cheyenne WY
Posts: 280
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Re: what 's the correct air pressure when doing it on sand, on highway, and on offroa
Quote:
Originally Posted by wpage
Steve,
Evidently you are running helium in your tires. When you air down stop inhaling it! 
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or nitrous oxide 
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08-31-2007, 10:38 PM
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Banned
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Join Date: Feb 2005
Location: Westwwod, CA.
Posts: 2,501
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Re: what 's the correct air pressure when doing it on sand, on highway, and on offroa
Quote:
Originally Posted by Steve #1
18 PSI? That's total right? As in 4.5 psi per tire?
For most vehicles / tires, it's not worth getting out of the truck, much less having to air back up if you don't go down to at least 10 PSI.
To get a good ball park, park on pavement and measure from the ground to the bottom edge of the rim. Reducing this distance by 25% will give you the largest foot print you can get (unless you want to get technical and do a ton of measuring). It depends on the tire and weight of the vehicle, but in most cases your looking at about 5 PSI, but may be anywhere from 2 to 10 PSI.
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Seriously, what planet are you wheeling on? I've aired down to 15-18 for rock and 12 for sand that was fine as talc (Oceano Dunes, CA). Where the hell have you wheeled with 2 PSI in your wheels? The article you site does not even mention pressures less than 7 PSI. And nowhere does it recommend that. I guess you could read articles and Web-Wheel with zero or even negative pressure in your tires. What exactly do you personally carry to re-attach your beads? Or do they just adhere from the negative pressure (vacuum)?
Last edited by tower : 08-31-2007 at 10:47 PM.
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09-01-2007, 09:35 PM
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Hummer Veteran
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Join Date: Aug 2007
Posts: 36
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Re: what 's the correct air pressure when doing it on sand, on highway, and on offroa
Apparently you also have a hard time reading.
All my off roading has been done on earth, but since you brought it up, on planets (or moons) without atmosphere special non pneumatic tires reinforced with wire cable or mesh are used.
I never said I had offroaded with 2PSI, I have gone down to 4-5 PSI on North Padre Island.
I'm not sure what the article I linked to said as far as PSI. I found that it gave a good explanation of the 25% rule (which was the point I was trying to make).
What do I carry to reattach beads? Well, here's a little list of things that can be used, which at any given time I may have an assortment of.
- High lift jack - handy for removing the wheel from the vehicle as well as pressing the wheel back on to the rim.
- Water and rags for cleaning the rim in order to get a good seal.
- A tire iron
- a valve stem tool
- high pressure air or CO2 tank
- can of starter fluid and a lighter - not saying it's safe, but most of the time it works.
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